Longji龙脊longadj.长的；冗长的；久的；长音的adv.长期地；久地；用于名词后强调某事发生在某整段时间v.渴望n.长时间；长音节；囤积商品者long-transient effect长瞬态效应long distance transport长程运输Long - cuhivated land熟地long - range teaching远程教学long trip triangulation长航线空中三角测量Long-distance learner远程学习者long-feed drill jumbo长进给钻车,深给进钻车Long and base line buoy长索浮标;长索浮筒long wave length cutoff长波截止区long- range education远程教育